We just finished testing our first 3 engine performance packages for the SRT 10 models. Our stage 1 and 2 systems were designed to be truely smog legal.
They will pass an IM 240 smog inpection in all states (the visual, emissions and dynamometer test). These systems had to work with the stock exhaust manifolds which are very restrictive. With the positioning of the dual catayst
so close to the stock manifold, there is no way a smog legal header can work.
changing the cats or relocating them is prohibited on new vehicles unless it is certified. Our stage 3 system uses a true header with a single cat but is advertised as a "off road sytem only". The results have been good and the hp numbers real (subsequent testing of our systems on other dynos have shown much higher numbers.) There are no real smog legal headers for the SRT. Systems may pass an emissions test out the tailpipe but are not certified (This can be a big problem when you sell a car or have to go to a referee smog station).
Here are the results,
Stock 434rwhp 465rwtrq
Stage 1 476rwhp 498rwtrq
Street port heads
Non bleed down lifters
Chromoly pushrods
K&N Filters
Borla Mufflers
Stage 2 497rwhp 525rwtrq
Extruded intake
CNC heads
True roller rockers
Chromoly pushrods
Non bleed down lifters
K&N filters
Borla mufflers
A/F tuning
Stage 3 530rwhp 541rwtrq
Same as stage two plus
Headers
Comp Coupe camshaft
Our biggest hurdle now to get more hp is in the intake manifold, with longer
runners another 40hp can be gained.
Pricing and dyno sheets will be on our web page soon at www.dcperformanceinc.com soon.
They will pass an IM 240 smog inpection in all states (the visual, emissions and dynamometer test). These systems had to work with the stock exhaust manifolds which are very restrictive. With the positioning of the dual catayst
so close to the stock manifold, there is no way a smog legal header can work.
changing the cats or relocating them is prohibited on new vehicles unless it is certified. Our stage 3 system uses a true header with a single cat but is advertised as a "off road sytem only". The results have been good and the hp numbers real (subsequent testing of our systems on other dynos have shown much higher numbers.) There are no real smog legal headers for the SRT. Systems may pass an emissions test out the tailpipe but are not certified (This can be a big problem when you sell a car or have to go to a referee smog station).
Here are the results,
Stock 434rwhp 465rwtrq
Stage 1 476rwhp 498rwtrq
Street port heads
Non bleed down lifters
Chromoly pushrods
K&N Filters
Borla Mufflers
Stage 2 497rwhp 525rwtrq
Extruded intake
CNC heads
True roller rockers
Chromoly pushrods
Non bleed down lifters
K&N filters
Borla mufflers
A/F tuning
Stage 3 530rwhp 541rwtrq
Same as stage two plus
Headers
Comp Coupe camshaft
Our biggest hurdle now to get more hp is in the intake manifold, with longer
runners another 40hp can be gained.
Pricing and dyno sheets will be on our web page soon at www.dcperformanceinc.com soon.